Global Patent Index - EP 0602486 A3

EP 0602486 A3 19950823 - FLOATING MAGNETIC HEAD.

Title (en)

FLOATING MAGNETIC HEAD.

Publication

EP 0602486 A3 19950823 (EN)

Application

EP 93119594 A 19931206

Priority

  • JP 35366492 A 19921214
  • JP 35965992 A 19921225

Abstract (en)

[origin: EP0602486A2] A floating magnetic head characterized in that a spacer 11 made from a nonmagnetic substance and which is longer than a head core 9 is interposed between a slider 2 made from a magnetic substance and the head core 9, or a part of the slider 2 is made from a nonmagnetic substance and the head core 9 is secured thereon, and coils 8 are wound in a balancing manner around core portions 9a and 9b of the head core 9 respectively on the sides of air outflow end and air inflow end. The present invention allows to shield a noise of an external magnetic field by the slider 2 and to improve a recording accuracy because the slider 2 becomes independent of the head core 9 in terms of a magnetic circuit and a magnetic resistance of the slider 2 becomes smaller than that of the head core 9. <IMAGE>

IPC 1-7

G11B 5/60

IPC 8 full level

G11B 5/105 (2006.01); G11B 5/11 (2006.01); G11B 5/17 (2006.01)

CPC (source: EP US)

G11B 5/105 (2013.01 - EP US); G11B 5/11 (2013.01 - EP US); G11B 5/17 (2013.01 - EP US)

Citation (search report)

  • [A] US 3956771 A 19760511 - BARNES JAMES L, et al
  • [A] US 5091810 A 19920225 - KAKIZAKI MASAO [JP], et al
  • [X] PATENT ABSTRACTS OF JAPAN vol. 014, no. 048 (P - 0997) 29 January 1990 (1990-01-29)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 014, no. 015 (P - 989) 12 January 1990 (1990-01-12)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 016, no. 151 (P - 1337) 14 April 1992 (1992-04-14)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 004, no. 011 (E - 168) 26 January 1980 (1980-01-26)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 013, no. 520 (P - 963) 21 November 1989 (1989-11-21)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 015, no. 030 (P - 1157) 24 January 1991 (1991-01-24)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 012, no. 029 (P - 660) 28 January 1988 (1988-01-28)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0602486 A2 19940622; EP 0602486 A3 19950823; EP 0602486 B1 19990210; DE 69323480 D1 19990325; DE 69323480 T2 19990624; US 5548459 A 19960820

DOCDB simple family (application)

EP 93119594 A 19931206; DE 69323480 T 19931206; US 39094795 A 19950221